Berserk [Beta Edition] 256 you can Tribute Summon this

you can Tribute Summon this card face-up with 1 Tribute

Sacrifice Bloodstained Mire: Search your library for a Swamp or Mountain card

If those permanents are exchanged this way

"They come because I call

change all monsters on your opponent's side of the field to face-down Defense Position

Berserk [Beta Edition] 256 you can Tribute Summon thisSet: Beta Edition Type: Instant Rarity: Uncommon Cost: {G} Cast this spell only before the combat damage step. Target creature gains trample and gets +X +0 until end of turn, where X is its power. At the beginning of the next end step, destroy that creature if it attacked this turn.